Saltwater Beginner

Hey guys,
I am going to be in Alaska this summer working. I am going to have a chance to do some fishing in the salt. There is a small bay or lagoon near my field camp and I will have access to a inflateable kayak and will have lots of beach access. I believe there are lots of rockfish and maybe flouder and halibut but I don't know. Do you guys have any advice; fly patterns, line type, rod size, technic etc. I would really appreciate any advice you have. Thanks